Joint direction finding and array calibration method for MIMO radar with unknown gain phase errors. Issue 14 (1st November 2016)

• Record Type: Journal Article
• Authors: Li, Jianfeng; Ding, Ji; Jiang, Defu
• Is Part Of: IET microwaves, antennas & propagation. Volume 10:Issue 14(2016)
• Page Start: 1563
• Page End: 1569
• Publication Date: 2016-11-01
• Subjects: MIMO radar -- radio direction‐finding -- calibration; multiple‐input multiple‐output radar -- MIMO radar -- joint direction finding -- array calibration method -- unknown array gain phase errors -- transmit array -- receive array -- trilinear decomposition -- transmit direction matrix -- receive direction matrix -- nonuniform linear array -- angle phase errors estimation -- gain phase errors estimation; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2016.0104
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : A novel method for joint direction finding and array calibration in multiple‐input multiple‐output (MIMO) radar with unknown array gain phase errors is proposed. The transmit array and receive array are innovatively arranged along different axes, which are orthogonal to each other. After the trilinear decomposition, the influenced transmit direction matrix and receive direction matrix are combined to estimate the angles, and the gain phase errors can be calculated subsequently. The proposed algorithm is suitable for both uniform linear array (ULA) and non‐ULA, and it can achieve favourable angle and gain phase errors estimation without any auxiliary sensors and any information of the gain phase errors. Furthermore, it has better estimation performance and lower complexity than the eigenstructure method. Simulation results verify the usefulness of the approach.